Tubing-bleeder.



G. C. BUSHONG.

TUBING BLEEDER.

APPLlcATIoN FILED APR.20. 1915.

1,1 5135661 s Patented Aug. 17:, 1915.

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the rib or stop 17, under conditions to be later set forth, to permit the barrel to connect the sections 4 and 5 when the section 5 is disenga ed from the collar 13.

It will e noticed that the barrel is provided with a series of radial openings or perforations 21 for permitting the oil to pass freely from the barrel, and the barrel normally occupies the position shown in Fig. 2, that is, outside of the section 5. A sleeve 22 is arranged within the well casing 1 at-the top of the cylinder 6, and the upper end of the bore of the said sleeve is reamed or beveled as indicated at 24.

A. sleeve 25 is arranged on the section 4 intermedia-te the ends thereof, and the upper end of this sleeve is externally enlarged as indicated at 26, and the enlargement is beveled externally, to lit the roamed or beveled surface 211 of the sleeve 22. When the section l is lowered from the position shown in Fig. l, to that shown in Figs. 2 and 3, this enlarged portion 26 of the sleei'e 25 will engage the upper end of the sleeve 22 and will seal the interior of the casing l. between said casing and the well tubing or casing.

The operation of the improved bleeder is as follows: llfhen the sand indicated at 12 collects in the casing 2--4-5, and it is de sired to bleed the same, the well pump casing 2-4-5 is lowered until the enlarged portion. 26 of the sleeve 25 engages the beveled surface 23 of the sleeve 22, and seals the well casing as above described. A. wrench is now connected with the upper end oi the pump casing 2-4-5, and the casing is turned in. a direction to release the threads 1G of the section from the threads 1st of the collar 13. As soon as the section 5 is released from the collar 13, that portion of the pump casing above the collar '13 is lifted as shown in Fig. 3, and the oil within the pump casing above the collar 13 will drain out th rough the perforations 21 oi the barrel, leaving only that small amount of oil above the sand and below the collar 13. rThe oil runs out into the well casing` 1 and is held in the casing, thus saving all of this oil usuali)1 wasted, and in addition greatly lessening the labor o'F pulling the casing, and the pump casing may be pulled from the well utter the oil is drained. The stop 17 by its engagement with the rib or stop 20 of the barrel limits the f'separating movement oli the sections -el and 5, and iu'erents their (lisengagement. lift/.uthe oil, has run out the section 5 may be reconnected with the cole.; lar llf. or the casing may be pulled with theA parts in the position shown in Fig. 3. The thread lll at the top of the collar 13 is a left handed thread.y as is also the thread 16 at the lower end of the section 5 oiE the pump tuliing. 'The thread 13 at the top oiA the collar 'i3 is a right hand thread, as is also the thread i9 oi the barrel, and the thread i4 at the bottom of the collar and inside the same. The engagement between the stops 17 and 2O is suilicient to permit thepulling of the pump casing and it is not necessary to re connect the section 5 to the collar 13 for pulling the' casing.

The connection between the two sections and 5 is a detachable connection, adapted to be operated from the top of the casing, and the barrel forms a slidable limiting and perforate connection Jfor permitting them to move away from each other within limits, to bring the perforate portion of the connection into operative position.

l claim:

1. In combination with a well casing and the pump casing therein and having a pump cylinder at the bottom and a plunger in the cylinder, of means in connection with the pump casing and the well casing and adj acent to the pump cylinder'for sealing the space between the said casings when the pump casing is lowered'with respect to the well casing, means in connection with thev two lowermost sections of the pump casing for bleeding the pump casing, and operable from the top of the pump casing, said means comprising a collar internally threaded at its upper and lower ends, the upper thread being a left hand thread, the two lower sections of the pump casing having a threaded engagement with the interior of the collar for connecting said sections, said collar loeing externally threaded at its upper end, and a barrel having its lower end threaded to engage the external threads of the collar and having an internal annular iiange at its upper end fitting the next upper casing section, said casing section having an annular stop for engaging the collar to limit the separating movement oit' the sections when the said last named section is disengaged from the collar, said barrel being perforated for the purpose specified.

2. ln combination with a well casing and the pump casing therein and having a pump cylinder at the bottom and a plunger for the cylinder, means in connection with the two lowermost sections of the pump casing for bleeding the pump casing, and operable from the top of the pump casing, said means comprising a union into which the meetihg ends of the sections are threaded, a perfon rate barrel. connected with the union and eX- tonding upward around the next uppermost section of the pump casing concentric with the same, and interengaging stops on the barrel and the said next upper section for permitting a limited movement of the barrel and the section with respect to each other.

l'n combination with a well casing and the pump casing therein and havinga pump cylinder at the bottom and a plunger for. the cylinder', means in connection with the two ,'mins sections mi? fthe pulzip casing im' ming the pump Gaining, and @iwi-ubi@ from of im pump musing, said menus a de-hicimbic connection butwcen oweifnst, seciims of the pump cusingi' mi; their meeting ends :uid operable from tmp of the casing, and n pei'fm'ate barl gw,

' named section. l

rei conmcimi with the iweimast pump ric-n ai, tim upper end tharcof :mai outside UE this next imwst section, and u siidnbie 0nnectiun bvtween the 0m-rc1 und. said last GBWER CLEAVLND BUSHONG. 

